package thread;

import sun.nio.ch.ThreadPool;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class ThreadPoolDemo {
    public static void main(String[] args) {
        ExecutorService threadPool = Executors.newFixedThreadPool(2);
        for(int i = 0; i < 5; i++){
            Runnable r = () -> {
                Thread t = Thread.currentThread();
                System.out.println(t+"正在运行");
                try {
                    Thread.sleep(5000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                System.out.println(t+"执行完毕");
            };
            threadPool.execute(r);
            System.out.println("讲一个任务交给线程池");
        }
        threadPool.shutdownNow();
        System.out.println("线程池关闭了");
    }
}
